Be aware that it does not fix the table of contents when it encrypts a decrypted XP.INT file.
If you want to make your own XP.INT file, give the app a headerless binary, so it generates a new header/TOC.
Example of a headerless binary here, with a UK Xploder v4 file I translated to french : SAMPLE.BIN

EDIT : Sorry, I accidentally hit the "PS1 Resource" prefix :/ ...

How To Use :
1. Edit your project file (MENUINFO.TXT)
2. Run COMPILER.EXE from your project folder (usually the POCKET folder)

Limitations :
- Up to 30 game saves
- Up to 10 languages
- 1 download type
- No # character allowed in game names
- Up to 255 characters for non-CDROM resource files paths

Where To Get The Resource Files :
- OPSM Euro Demo 54 UK (SCED-01828)
or
- OPSM Euro Demo 12/99 Germany (SCED-01843)
or
- OPSM Euro Demo 01/00 Germany (SCED-01844)
or
- decompile an existing POCKET.DAT file from one of the many Official PS Magazine PAL demo discs that have it.

Tips :
- POCKET.EXE can load a splashscreen from the CD-ROM, \POCKET\LOADING.TIM which has to be a 640x512 16-bit TIM.
- There's a bootstrap in Gran Turismo 2 - Bonus CD (SCED-02904) for \POCKET\POCKET.EXE...